Gas-jet cage.



No. 679,59. Patented July 23. I90l.

w. c. PERKINS.

GAS JET CAGE.

Lpplinafiml filed Mar. 5, 1001.)

(No Model.)

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WILLIAM C. PERKINS, OF NEW HAVEN, CONNECTICUT.

GAS-JET CAG E.

SPECIFICATION forming part of Letters Patent No; 679,159, dated July 23,1901.

Application filed March 5, 1901.

To all whom it nttty concern.-

Be it known that I, WILLIAM C. PERKINS, of New Haven, in the county ofNew Haven and State of Connecticut,have invented a new Improvement inGas-Jet Cages; and I do hereby declare the following, when taken inconnection with the accompanying drawings and the numerals of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in

Figure 1, a plan view of one form which a gas-jet cage constructed inaccordance with my invention may assume; Fig. 2, a View thereof in sideelevation; Fig. 3, a detached view of one of the sections; Figgl, adetached perspective View of the bracket; Fig. 5, adetached perspectiveview of the couplingplate of the bracket; Fig. 6, a detached view,partly in plan and partly in section, of the coupling-plate of thebracket, showing the lower end thereof; Fig. 7, a broken view showingthe application of the cage to a gasburner, with particular reference tothe use of the coupling-plate.

My invention relates to an improvement in Wire gas-jet cages, the objectbeing to produce at a low cost for manufacture a strong, attractive,durable, and convenient guard for use on gas-jets as a protectionagainst fire.

With this end in View my invention consists in a sectional gas-jet cagehaving certain details of construction and combinations of parts, aswill be hereinafter described, and pointed out in the claims.

In carrying out my invention as herein shown I form the body of the cagefrom a series of body-sections, each comprising an upright leg 2, ahorizontal arm 3, and a relatively short coupling end 4, which is turneddownwardly from one end of the horizontal arm, the other end of whichmerges into the upper end of the upright leg, which stands at an angleof something less than ninety de grees to the horizontal arm. Each ofthe said body-sections is formed, as shown, from a single piece of wire.The legs 2 of all the sections are formed at their lower ends with eyes5 for the reception of awire hoop 6, the ends of which are inserted intoa ferrule 7. The coupling ends 4 of the respective sections are twistedaround the upper ends of the legs Serial No. 49,910. (No model.)

of the sections lying adjacent to them, and so on, the upper ends of thesaid legs being in this way twisted well as the coupling ends,

as shown at 8 in Fig. 3. A polygonal structure of great strength is thussecured.

Within the body of the cage and just below the center thereof I locate aheavy sheetmetal bracket formed from a single piece of sheet metal andcomprising an upper plate 9, a lower plate 10, and a connecting-strip11, the plates 9 and 10 being formed with circular openings 12 and 13,of which the latter is slightly larger than the former to correspond tothe tapering form of an ordinary gas burner 14. Each of these plates isformed with perforated lugs 15 for the reception of the vertical arm 16of threeradially-arranged wire frames, also comprising arms 17 and 18,slightly diverging from each other, the arms 17 being formed withcoupling ends 19, which are twisted around the legs 2 of thebody-sections, and the arms 18 being formed with eyes 20, through whichthe hoop 6 is passed. These frames act not only to support the bracket,but also to stiffen the entire cage structure.

For the purpose of positively connecting the cage to a lamp burner Iprovide the bracket with a coupling-plate 21, furnished with screws 22and 23, respectively entering threaded openings 24 and 25, formed in theconnecting-strip 11 of the bracket. lBy turning the screw 22 inwarduntil it impinges against the burner 14: the cage may be so cured to theburner without capacity for rotation; but by turning the screw 22 backand temporarily-loosening the screw 23, so as to permit theinwardly-turned edge 26 of the plate 21 to be snapped under the collar27of.

the burner, then the cage will be secured to the burner so that itcannot be lifted off, but so that it may be rotated. After the plate 21has had its edge 26 snapped under the collar 27 of the burner the screw23 will be tightened again.

Of course the number of sections entering into the construction of myimproved cage and the particular construction of the bracket and theframes for supporting the same may be varied. If desired, the reaches 3of the body-sections may be bowed, so that the general form of the cagewill be round instead of polygonal. I would therefore have the formshown, but hold myself at liberty to make such changes and alterationsas fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A gas-jet cage having its body composed of. a plurality of wirebody-sections, each made from a single piece of wire, and eachconsisting of an upright leg, a horizontal arm, and a coupling endturned downwardly from one end of the said arm, the other end of whichmerges into the upper end of the said leg, the coupling ends of the saidsections being twisted around the upper ends of the legs of the adjacentbody-sections, and the lower ends of the legs of the sections beingconnected together.

2. Agas-jet cage havingits body composed of a plurality of wirebody-sections, each formed from a single piece of wire, and eachcomprising an upright leg having an eye at its lower end, a horizontalarm merging at one end into the upper end of the said leg, and acoupling end turned downwardly from the other end of the said arm, andthe coupling ends of the several sections being twisted around the upperends of the adjacent sections, and a hoop passing through the eyes atthe lower ends of the upright legs of the respective sections.

3. In a gas-jet cage, the combination with a plurality of wirebody-sections each comprising an upright leg, a horizontal arm and adepending coupling end, the coupling ends of the said sections beingtwisted around the upper ends of the adjacent body-sections, of meansfor uniting the lower ends of the legs of the said body sections, asheet metal bracket comprising an upper and a lower plate and aconnecting-strip between the same, and radially arranged wire framesconnected at their inner ends with the upper and lower plates of thesaid bracket, and

connected at their outer ends with the said legs and with the saidmeans.

4. In a gas-jet cage, the combination with a plurality of wirebody-sections each of which has an upright leg, a horizontal arm and adepending coupling end, the coupling ends of the said sections beingtwisted around the upper ends of the adjacent body-sections, of meansfor uniting the lower ends of the said legs, a sheet-metal bracket, andradially-arranged wire frames each consisting of a vertical leg passingthrough the bracket and an upper and a lower arm, the upper arm of eachframe being connected with aleg of one of the said body-sections, andthe lower arm of each frame being connected with the said means.

5. In a gas-jet cage, the combination with the body thereof, of asheet-metal bracket located in the center of the cage and comprising anupper and a lower plate and a connecting-strip between the same, meansconnected with the said body-sections for supporting the said bracketcentrally within the cage, and acoupling-plate applied to the saidconnecting-strip of the bracket and coacting with a supporting gas-pipefor securing the cage thereto with a capacity for rotation thereon.

6. In a gas-jet cage, the combination with a plurality of wirebody-sections each consisting of an 'upright leg, a horizontal armmerging at one end into the upper end of the said leg, and a couplingend depending from the other end of the said arm, the coupling ends ofthe said sections being twisted around the upper ends of the uprightlegs of adjacent sections; of ahoop connecting thelower ends of the saidlegs, a sheet-metal bracket formed from a single piece of'sheet metaland comprising an upper and lower plate, each having a centralperforation, and also comprising a strip connecting the said plates, anda plurality of radially-arranged wire frames, each having a vertical armpassing through the upper and lower plates of the said bracket, and eachhaving an upper and a lower arm, the upper arms of the said frames beingconnected at their outer ends with the upright legs of the body-sectionand the lower arms of the said frames being connected with the saidhoop.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WVILLIAM O. PERKINS. Witnesses:

DANIEL H. VEADER, C. E. CLARK.

